Optimization of operation conditions for extracting lithium ions from calcium chloride-type oil field brine

作     者：Hong-jun Yang Qing-hai Li Bing Li Feng-qin Guo Qing-fen Meng Wu Li 

作者机构：Qinghai Institute of Salt Lakes Chinese Academy of Sciences Xining 810008 China Graduate University of the Chinese Academy of Sciences Beijing 100049 China Fundamental Department Qinghai University Xining 81 O016 China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2012年第19卷第4期

页      面：290-294页

核心收录：

学科分类：081702[工学-化学工艺] 081803[工学-地质工程] 08[工学] 0817[工学-化学工程与技术] 0818[工学-地质资源与地质工程] 

基　　金：supported by the Ministry of Science and Technology of People's Republic of China (No.2006BAB09B07) National Nature Science Foundation of China (No.41073023) Research Project of Science and Technology Department of Qinghai Province, China (No.2010-G-210) 

主　　题：lithium extraction oil field brine aluminium hydroxide 

摘      要：AI（OH）3 was prepared to extract lithium ions from calcium chloride-type oil field brine. The influences of four factors, namely temperature, Al3＋/Li＋ molar ratio, OH-/Al3＋ molar ratio, and contact time between AI（OH）3 and the brine, on the yield of lithium ions were investigated. It is found that their optimal values are 35℃, 4.5, 2.6, and 6 h, respectively. In the course of the experiment, the apparent pH value was observed. The results reveal that the apparent pH value has no remarkable influence on the yield of lithium ions. Meanwhile, the effects of the concentrations of calcium ions and magnesium ions in the brine on lithium recovery were studied. The results indicate that cal- cium ions have minor negative influence on the yield of lithium ions under optimal conditions, and magnesium ions slightly influence the yield of lithium ions.